If something is boring after two minutes, try it for four. If still boring, then eight. Then sixteen. Then thirty-two. Eventually one discovers that it is not boring at all.
If you don't physically age gracefully, it's a bit sad. I think Steven Tyler can get away anything, because he still looks like he did in '73. Especially from row Z backwards in an arena. As long as the Stones keep their hair and don't get fat they'll get away with the wrinkles.

